While sending messages, the CallHub system sends the message to the telecom carrier, and the carrier notifies CallHub if the messages were successfully sent, delivered, or failed. Telecom carriers use error codes to identify the reason for the message failure. You can view them from the “Error Code” column in the SMS Report. The below table describes each error code.
|
ERROR CODE |
ERROR MESSAGE |
DESCRIPTION |
|
30003 |
Unreachable Destination Handset |
The recipient's number is unreachable. The number could be out of service or may not accept messages. |
| 30004 | Message blocked |
If a message you sent is not delivered to the end device it means the message failed as the destination number is blocked from receiving this message. |
|
30005 |
Unknown Destination Handset |
The destination number is unknown or no longer in service. |
| 30006 | Landline or unreachable carrier | The destination number is unable to receive this message. Potential reasons could include trying to reach a landline or, in the case of shortcodes, an unreachable carrier. |
|
30007 |
Carrier Violation |
The number is blocked and the messages are filtered and/or marked as “Spam” for violating carrier regulations. |
|
30008 |
Unknown Error |
The telecom carrier has returned a generic error message. Telecom carriers have no information about this error, it could be that mobile is switched off or not in-network. |
|
50
|
Invalid destination number | The destination number you entered is either not entered correctly or not SMS-enabled. |
|
300
|
Failed to dispatch Message | An error occurred while sending the message to carriers. This is an internal failure, and messages with this error code will be retried at a later time. |
|
1000
|
Unknown error | Delivering your message failed for reasons that are unknown to us and to our carriers. |
|
70
|
Destination permanently unavailable | The destination phone number is not active and there is no indication of when it will become available again |
|
90
|
No route available | The carrier and fallback carriers were not able to deliver the SMS message because the route was not available. |
|
200
|
Source number blocked by STOP from destination number | The destination has opted out of your campaign and blocked all messages sent from your phone number. Opt-outs are typically received via text message replies with an opt-out keyword including “STOP” |
|
20
|
Network Error | The carrier delivering the text message had network issues. This is a temporary error. You can retry at a later time when the carrier network is unaffected. |
|
30/40002
|
Spam Detected | The error occurs when the messages you are trying to send are filtered by the carrier when Spam is detected by the carrier. |
|
40004
|
Rejected by destination | The recipient server is rejecting the message for an unknown reason. |
|
40008
|
Undeliverable |
The destination may not have messaging service, or their account may not be in good standing or The destination network may be experiencing a temporary problem |
|
40012
|
Invalid destination number | The destination phone number was deemed invalid by the carrier and was rejected |
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